Last week I ordered a nice white leather bag and had it shipped to me. Not two days after receiving the bag, I got an email from the company I'd bought it from advertising their new sale; the front page of the site prominently displays a discount code for 25% off. Now the bag was not cheap, so I had one of two options:
1. Return the bag I just bought and reorder the bag using the coupon code (causing the vendor to have to pay for another round of free shipping, processing a return, and processing a new order, as well as imposing return shipping costs on me), OR
2. Call them up, explain how this is stupid, and get them to credit the difference to my account.
Can you guess which option the vendor chose?